EP 3251202 A1 20171206 - CONVERTER HAVING SHORT-CIRCUIT INTERRUPTION IN A HALF-BRIDGE
Title (en)
CONVERTER HAVING SHORT-CIRCUIT INTERRUPTION IN A HALF-BRIDGE
Title (de)
UMRICHTER MIT KURZSCHLUSSUNTERBRECHUNG IN EINER HALBBRÜCKE
Title (fr)
CONVERTISSEUR À COUPURE PAR COURT-CIRCUIT EN UN DEMI-PONT
Publication
Application
Priority
- DE 102015207187 A 20150421
- EP 2016058045 W 20160413
Abstract (en)
[origin: WO2016169817A1] The invention relates to a method for controlling a converter (1), wherein a positive line (12) and a negative line (13) of an intermediate circuit (3) are connected to an alternating-voltage phase conductor (9) by means of a half-bridge (17), in each case via a plurality of semiconductor switches (20, 21, 23), wherein each semiconductor switch (20, 21, 23) has a separate fuse (22, 24) connected in series. The converter (1) should robustly react in the event of a permanent short circuit caused by one of the semiconductor switches (23). For this purpose, the method comprises the detection of the defective semiconductor switch (23) that permanently remains in an electrically conductive state and incremental melting of the fuse (24) of the defective semiconductor switch (23) by short-circuiting the positive line (12) and the negative line (13) to each other multiple times via the defective semiconductor switch (23) and via at least two others of the semiconductor switches (21). Each short circuit lasts only one pulse duration (Tsoa), which is shorter than a melting duration (Ta) that the fuse needs in order to melt in the event of a continuous short circuit.
IPC 8 full level
H02M 1/32 (2007.01); H02M 1/088 (2006.01)
CPC (source: EP US)
B64D 35/02 (2013.01 - US); H02M 1/088 (2013.01 - EP US); H02M 1/32 (2013.01 - EP US); H02M 5/458 (2013.01 - US); H02P 27/06 (2013.01 - US); H02M 1/325 (2021.05 - EP US)
Citation (search report)
See references of WO 2016169817A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
WO 2016169817 A1 20161027; BR 112017021820 A2 20180710; CN 107534384 A 20180102; CN 107534384 B 20200519; DE 102015207187 A1 20161027; DE 102015207187 B4 20161117; EP 3251202 A1 20171206; EP 3251202 B1 20190320; US 10574131 B2 20200225; US 2018145580 A1 20180524
DOCDB simple family (application)
EP 2016058045 W 20160413; BR 112017021820 A 20160413; CN 201680023667 A 20160413; DE 102015207187 A 20150421; EP 16716536 A 20160413; US 201615568374 A 20160413